package com.itheima.service;

import com.baomidou.mybatisplus.extension.service.IService;

import java.util.List;
import java.util.Map;

public interface ReportService{
    //员工职位人数统计
    Map empJobCount();

    //员工性别人数统计
    List<Map> empGenderData();

    //学员学历统计
    List<Map> studentDegreeData();

    //班级人数统计
    Map studentCountData();
}
